CN113540849A - Feedthrough for high-voltage applications - Google Patents

Feedthrough for high-voltage applications Download PDF

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Publication number
CN113540849A
CN113540849A CN202110417970.1A CN202110417970A CN113540849A CN 113540849 A CN113540849 A CN 113540849A CN 202110417970 A CN202110417970 A CN 202110417970A CN 113540849 A CN113540849 A CN 113540849A
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China
Prior art keywords
functional element
pressure
feed
base body
fluid
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CN202110417970.1A
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Chinese (zh)
Inventor
O·W·弗里茨
T·芬克
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Schott AG
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Schott AG
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L5/00—Devices for use where pipes, cables or protective tubing pass through walls or partitions
    • F16L5/02—Sealing
    • F16L5/14—Sealing for double-walled or multi-channel pipes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B17/00—Insulators or insulating bodies characterised by their form
    • H01B17/26—Lead-in insulators; Lead-through insulators
    • H01B17/30—Sealing
    • H01B17/303—Sealing of leads to lead-through insulators
    • H01B17/305—Sealing of leads to lead-through insulators by embedding in glass or ceramic material
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G15/00—Cable fittings
    • H02G15/02—Cable terminations
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/5216—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases characterised by the sealing material, e.g. gels or resins
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
    • H02G1/06—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle
    • H02G1/08—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle through tubing or conduit, e.g. rod or draw wire for pushing or pulling
    • H02G1/086—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle through tubing or conduit, e.g. rod or draw wire for pushing or pulling using fluid as pulling means, e.g. liquid, pressurised gas or suction means
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/22—Installations of cables or lines through walls, floors or ceilings, e.g. into buildings
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C13/00—Pressure vessels; Containment vessels; Containment in general
    • G21C13/02—Details
    • G21C13/032—Joints between tubes and vessel walls, e.g. taking into account thermal stresses
    • G21C13/036—Joints between tubes and vessel walls, e.g. taking into account thermal stresses the tube passing through the vessel wall, i.e. continuing on both sides of the wall
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C17/00—Monitoring; Testing ; Maintaining
    • G21C17/10—Structural combination of fuel element, control rod, reactor core, or moderator structure with sensitive instruments, e.g. for measuring radioactivity, strain
    • G21C17/116—Passages or insulators, e.g. for electric cables

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Dispersion Chemistry (AREA)
  • Ceramic Engineering (AREA)
  • Insulators (AREA)
  • Measuring Fluid Pressure (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Installation Of Indoor Wiring (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Glass Compositions (AREA)
  • Taps Or Cocks (AREA)

Abstract

The invention relates to a feed-through, in particular for high-voltage applications, comprising a base body having at least one through-opening extending through the base body; at least one first functional element which is arranged in the at least one through-opening and is connected to the base body in a fluid-tight manner; an insulating material which at least partially surrounds the first functional element and establishes a fluid-tight connection with the base body; the pressure conducting channel is located in the first functional element, and a pressure component generated by the pressure is conducted from the inside of the first functional element to the outside of the first functional element to the surrounding insulating material by means of the pressure conducting channel, thereby improving the pressure resistance of the fluid-tight connection of the at least one first functional element to the base body.

Description

Feedthrough for high-voltage applications
Technical Field
The invention relates to a feed-through for high-pressure applications and to the use thereof at high pressures.
Background
For many applications, feedthroughs are used which reliably withstand high pressures. Reliable use of the feed-throughs and the use thereof, in particular when these feed-throughs are in contact on one side with a fluid under high pressureIts long-lasting operational integrity is very important from a security point of view. These applications include devices in deep seas, such as oil drilling and exploration devices; or its use in a chemical or radiation environment, for example in the chemical industry or in energy plant and reactor technology. Other applications include, for example, manned and unmanned water-borne vehicles, such as diving robots and submarines, and special gas tanks, such as CO for motor vehicles with fuel cells2Reservoir or H2And (4) storage tank.
US 4,797,117 discloses a connector with a rubber jacket in which a sealing lip ring with a wedge-shaped cross section is sealingly applied to an insulated conductor by pressing by means of an element with a conical opening. This construction of the connector is intended in particular for field installation and repair thereof.
US 2006/0179950 a1 shows a housing feed-through for a pressure sensor-containing assembly, which has a substantially wedge-shaped cross-sectional fluid annular seal which sealingly surrounds the assembly inside a frustoconical opening of the housing. In order to provide a simpler manufacturing method, it is proposed to introduce wedge-shaped fluid ring seals with high forces, so that at least the elastic deformation limit of the housing or assembly is exceeded.
DE 102006054843 a1 discloses an electrical feed-through, in particular for pressure applications, having a housing passage at least in the region of a first housing end, wherein the pressure-loaded housing side forms at least two openings in a section of the housing outer surface. In this case, the at least two openings are preferably of the same or substantially the same area. Furthermore, the at least two openings are offset at uniform angular intervals about the housing axis, more precisely preferably such that the axes of the openings and thus also the lines of force of the forces generated by the pressure on the pressure side preferably intersect at a common point together with the housing axis. This design is intended to compensate for the pressure acting on the port in pressure applications. A disadvantage of such a feedthrough is that the forces generated by the pressure load are transmitted through the insulating material surrounding the respective conductor and compensation can only be achieved with two conductors in each case in pairs. Furthermore, in this arrangement, the respective conductor is bent by 90 ° inside the housing opening, which not only makes the production difficult, but also complicates the geometry of the conductor guide. Furthermore, the geometry is many times larger than the spatial position required in the case of straight conductor guides.
DE 102016103485 a1 describes a feedthrough, in particular for applications under high external pressure, in which a functional element is arranged within a through-opening of a base body and is held in a fluid-tight manner in said through-opening by means of a surrounding insulating fluid. The pressure compensation device is provided, for example, with an annular groove or blind-hole-like opening in the material of the base body in order to transmit a pressure component to the edge region of the insulating material. However, depending on the material or geometry of the base body or of the functional element, such pressure compensation devices can sometimes be difficult to produce or impossible to implement. Furthermore, the depth of the groove or blind hole-like opening formed in the base body is limited, so that the action of the pressure compensation device in the longitudinal direction of the functional element is limited to a partial region of the base body.
Disclosure of Invention
The object of the present invention is to provide a feed-through in which a functional element can be held in a fluid-tight manner and in a durable manner even under high pressure. This should also be possible when a recess in the base material is undesirable or impossible, for example due to the material or geometry of the feedthrough.
One aspect of the task of the invention is to allow a stable transmission of high pressures, so that a pressure stabilization can be achieved across the entire base body in the longitudinal direction of the functional element.
To achieve this object, the invention discloses a feed-through, in particular for high-voltage applications, comprising: a base having at least one through opening extending therethrough; furthermore, at least one first functional element is provided, which is arranged in the at least one through-opening and is connected to the base body in a fluid-tight manner; and an insulating material which at least partially surrounds the first functional element and establishes a fluid-tight connection with the base body.
The feedthrough is characterized in that a pressure conducting channel is present inside the first functional element, by means of which a pressure component generated by pressure is conducted from inside the first functional element to the surrounding insulating material, so that the pressure resistance of the fluid-tight connection of the at least one first functional element to the base body is increased.
In other words, the pressure conducting channel is located inside the functional element itself and can be configured, for example, as a recess or as a free space in the interior of the functional element. The invention thus enables an improvement in the pressure resistance even when recesses in the material of the substrate are not desired or possible. Since the functional elements usually project from both sides of the base body, pressure stabilization can even be achieved across the entire base body.
Surprisingly, by these measures, the connection between the base body and the functional element, in particular the connection of the insulating material to the base body, withstands an increased operating pressure of more than 10%, preferably more than 20%, more preferably more than 50%, still more preferably more than 75% and most preferably more than 100%, in a fluid-tight manner compared to a feed-through without pressure-conducting channels. In the same way, the compression resistance of the feed-through can thereby be increased by more than 10%, preferably by more than 20%, more preferably by more than 50%, still more preferably by more than 75%, most preferably by more than 100%.
As such a feed-through may be used in a number of advantageous ways, in particular for devices in deep sea, for example for use in oil and/or gas drilling or exploration devices; and/or in chemical or radiation environments, for example in the chemical industry or in energy plant and reactor technology, especially in explosion-hazard areas; for use in an energy generation or storage device having a housing; or in the packaging of an energy generation device or an energy storage device or a reactor or a storage device for toxic and/or harmful substances, in particular as a feed-through in or through a reactor containment, in particular a chemical or nuclear reactor; or in a spacecraft or space exploration vehicle; or in the housing of the sensor and/or of the actuator, the pressure acting on the feedthrough may thus be an internal pressure, for example in reactors, but also an external pressure, thus an external pressure, in other applications (for example in deep sea). The pressure-facing side of the basic body is therefore to be referred to as the side of the basic body on which the increased external or internal pressure and thus generally the increased pressure acts, while the other side is to be referred to as the side facing away from the pressure.
The pressure on the side facing the pressure is thus conducted via the pressure conduction channel to the interior of the first functional element. Therefore, a pressure component generated from the pressure on the side facing the pressure from the inside of the functional element acts outward. Preferably, the feedthrough is designed such that a pressure component generated by the pressure is conducted perpendicularly to the longitudinal direction of the through-opening from within the first functional element to the surrounding insulating material.
In particular, the first functional element may be at least partially tubular, with a tube wall surrounding the internal cavity, such that the internal cavity or a part of the internal cavity forms a pressure conduction channel of the first functional element.
The pressure conducting channel can be configured, for example, as a blind-hole-like opening in the interior of the functional element. However, the pressure conducting channel can also be configured, for example, as a through-opening in a first functional element, for example, in the form of a continuous tube, wherein a second functional element can be arranged inside the first functional element at intervals with a gap, which second functional element can be connected to the first functional element at a specific position in the longitudinal direction (for example, the end side) in order to close the gap.
In general, therefore, a second functional element can be included which is arranged inside the first functional element, in particular inside the inner cavity of the tubular first functional element. In this case, an intermediate space can remain between the first functional element and a second functional element arranged in the first functional element, which intermediate space forms a pressure conduction channel. Furthermore, a connecting material may be included which at least partially surrounds the second functional element and establishes a fluid-tight connection with the first functional element. The connecting material can be arranged, for example, at the end of the first functional element and/or at the end forming the pressure conducting channel.
In a preferred embodiment of the invention, the first functional element is of continuous tubular configuration and extends through the through-opening of the base body.
Furthermore, the second functional element preferably extends continuously through the inner cavity of the first functional element of the tubular configuration.
Furthermore, it is preferred that an annular intermediate space remains between the first functional element and a second functional element arranged in the first functional element, which annular intermediate space forms the pressure conduction channel.
The second functional element may be annularly surrounded by a connecting material which forms an end of the pressure conduction channel and which is arranged closer to the side facing away from the pressure than, for example, on the side facing the pressure of the base body or of the first functional element or of the second functional element.
When at least two functional elements, i.e., the first and second functional elements, are provided, the first functional element may have a lower coefficient of thermal expansion than the second functional element. Alternatively or additionally, the second functional element may have a higher electrical conductivity than the first functional element. Alternatively or additionally, the connecting material between the first functional element and the second functional element may have a lower hardness than the insulating material between the first functional element and the base body.
In an exemplary embodiment, the feedthrough may be configured as a power feedthrough, for example, in order to conduct high currents through the feedthrough. For this purpose, the first functional element can be designed, for example, as a fusion pipe (Einschmelzrohr) which is melted in a matrix by means of glass, wherein copper contacts extend through the fusion pipe. Since copper and glass have relatively different coefficients of thermal expansion, the fusion pipes may be provided with, for example, a low ductility alloy to compensate for this mismatch in coefficients of thermal expansion. For example, the fusion pipe may be joined at one end to the copper contact by means of hard solder (Hartlot), for example, while performing a fusion process.
The base body, which is connected to the functional element in a fluid-tight manner, may preferably comprise or consist of a metal, in particular steel, stainless steel, FeCo alloys, titanium alloys, aluminum and aluminum alloys, Kovar alloys (Kovar) or Inconel alloys (Inconel), for example Inconel 690 and/or Inconel 625.
The insulating material establishing the fluid-tight connection can preferably comprise or consist of glass, glass-ceramic material and/or ceramic material. The feedthrough may in particular comprise a pressure-fitted glass part (Druckeinglang), wherein a glass and/or glass-ceramic material and/or ceramic material connects the base body and the first functional element in a fluid-tight manner, in each case at least in certain regions.
The first functional element arranged in the through-opening of the base body may in particular comprise or consist of metal.
The second functional element, which is arranged for example within the first functional element, if present, may in particular comprise or consist of a metal, for example copper. The connecting material connecting the first functional element to the second functional element may in particular comprise or consist of a metal or an alloy, for example in the form of a hard solder.
In particular in the case of only the first functional element, which, however, in principle also has nothing to do with, can comprise or consist of one of the materials mentioned above for the second functional element.
In particular in the embodiment with a first tubular functional element and a second functional element extending through the first tubular functional element, the feed-through preferably has a pressure resistance of at least 400 bar, particularly preferably at least 500 bar, and very particularly preferably at least 600 bar.
The invention also relates to the use of one of the feedthroughs described above at a pressure of at least 400 bar, preferably at least 500 bar, particularly preferably at least 600 bar.
Finally, the invention also relates to the use of one of the above-mentioned feed-throughs for a device in deep sea, for example for an oil and/or gas drillIn a probing or exploration device; and/or in chemical or radiation environments, for example in the chemical industry or in energy plant and reactor technology, in particular in explosion-hazard areas; for use in an energy generation or storage device having a housing; or in the packaging of an energy generation device or an energy storage device or a reactor or a storage device for toxic and/or harmful substances, in particular as a feed-through in or through a reactor containment, in particular a chemical reactor or a nuclear reactor; or in space vehicles or space exploration vehicles; or in the housing of the sensor and/or of the actuator; devices for use in or on manned or unmanned water-borne vehicles, such as diving robots and submarines; and a gas tank, in particular CO, preferably also for a motor vehicle having a fuel cell2Reservoir or H2And (4) storage tank.
The feed-through according to the invention can be used in particular for power feed-throughs based on GTMS (glass-to-metal encapsulation), in which (einglasen) copper conductors are glass-embedded by means of a fused tube. The fields of application may be, for example, feed-throughs for nuclear reactors, liquefied gas tanks, oil/gas exploration and production, and/or cable feed-throughs for energy production.
Drawings
The invention is described in more detail below with the aid of preferred embodiments and with reference to the accompanying drawings. For this purpose, it is shown that:
figure 1 shows a cross-sectional view of a preferred embodiment of a feed-through with a first functional element,
fig. 2 shows a cross-sectional view of a container with a further preferred embodiment of a feed-through with a first and a second functional element, wherein the feed-through is mounted in two configurations.
Detailed Description
Fig. 1 shows a feed-through 10 with a base body 20, in particular in the form of a housing, through which a through-opening 22 extends. A functional element 30, which is in particular designed as an electrical contact, is arranged in the through-opening 22 extending through the base body 20. The functional element 30 is connected to the base body 20 in a fluid-tight manner by means of an insulating material 40. The insulating material 40 is designed as frit glass and is located in the through-opening 22 of the base body, more precisely between the base body 20 and the functional element 30.
A pressure conducting channel 32, which may be configured, for example, as a central bore, is located in the functional element 30. The pressure conducting channels 32 can be used to conduct pressure components from the interior of the first functional element 30 to the exterior to the surrounding insulating material 40, so that the functional element 30 with increased pressure resistance is accommodated in the insulating material 40 and/or the insulating material 40 with increased pressure resistance is accommodated in the interior of the base body 20.
The pressure conducting channel 32 can extend in particular over the entire longitudinal direction (axial direction) of the insulating material 40 and/or of the base body 20, so that pressure stabilization is achieved along the entire longitudinal direction.
As shown in fig. 2, the container 100 encloses an inner space 200, and an outer space 300 is opposite to the inner space 200. Now, between the inner space 200 and the outer space 300, a feedthrough 10 and a further feedthrough 10' are arranged in the vessel wall portion, in particular in order to exchange electrical or other signals between the inner space 200 and the outer space 300.
The feed-through 10, 10' each has a base body 20 through which a through-opening 22 extends. A tubular first functional element 30 is introduced into the through-opening 22, wherein an insulating material 40 establishes a fluid-tight connection between them. The first functional element 30 is designed here as a tube, wherein a second functional element 50 extends through its inner hollow space 36, which serves as an electrical conductor. An annular intermediate space 52 or gap remains between the first and second functional elements, into which pressure can penetrate from the side facing the pressure. On the side facing away from the pressure, the intermediate space 52 is closed by a connecting material 60. The intermediate space 52 thus forms a pressure-conducting channel 32 into the interior of the first functional element 30, so that high pressure can act outwardly therefrom and thus press the tube outwardly against the insulating material 40. This results in a stabilization of the feed-through, in particular a prevention of the first functional element 30 being pressed out of the base body in its longitudinal direction.
Two cases are distinguished in fig. 2. In the case where the external space 300 has a higher pressure than the internal space 200, the mounting is performed according to the feedthrough 10 (left side). Thus, high external pressure can penetrate into the pressure conduction channel 32 and stabilize the feedthrough. In the opposite case, i.e. with an internal space 200 having a higher pressure than the external space 300, mounting is performed according to feedthrough 10' (right). Thus, high internal pressure may penetrate to the pressure conducting channel 32 and stabilize the feedthrough.
The present invention thus provides a solution for increasing the pressure resistance, wherein the open side of the first functional element 30 is arranged to be exposed to pressure, so as to achieve an arrangement that is self-reinforcing with increasing pressure. The open areas of the functional elements 30 protruding from the insulating material 40 experience isostatic pressure conditions, while the areas in the insulating material 40 press more and more strongly against the insulating material 40 as the pressure increases. Thus, with the present invention a significant increase of the compression resistance of the feed-through can be achieved in a surprisingly simple manner.
In this example, the feed-through 10, 10' is configured as a power feed-through, in which a copper conductor 50 is glass-fitted into the base body 20 by means of a fusion pipe 30 with a pressure glazing 40. The fusion pipe 30 is used here for expansion fitting with the fusion glass 40, since the copper conductor 50 has a relatively high difference in thermal expansion coefficient compared to the glass 40. The copper contact 50 is connected to the end of the fusion pipe 30 by means of the brazing filler metal 60.
In tests, it was found that the feed-through 10 withstands a pressure of 680 bar without damage in the presence of the pressure-conducting channel 32, whereas the tightness of the feed-through fails from a pressure of 380 bar in the absence of the pressure-conducting channel 32. Without the pressure conduction channel 32, it is even possible that the copper contact is pressed out of the glazing unit (einglaung) together with the fusion pipe.
The container 100 shown in fig. 2 comprises at least one feed-through 10, 10' with a first and a second functional element 30, 50, it being possible for the container 100 to comprise at least one feed-through with only a first functional element, as shown, for example, in fig. 1.

Claims (14)

1. Feed-through (10), in particular feed-through (10) for high-voltage applications, comprising:
a base body (20) having at least one through opening (22) extending through the base body;
at least one first functional element (30) which is arranged in the at least one through-opening (22) and is connected in a fluid-tight manner to the base body (20); and
an insulating material (40) which at least partially surrounds the first functional element (30) and which establishes a fluid-tight connection with the base body (20);
characterized in that a pressure conducting channel (32) is present in the interior of the first functional element (30), by means of which pressure components generated by the pressure are conducted from the interior of the first functional element (30) to the outside to the surrounding insulating material (40), so that the pressure resistance of the fluid-tight connection of the first functional element (30) to the base body (20) is increased.
2. The feed-through (10) of the preceding claim, wherein a pressure component generated by the pressure is conducted perpendicularly to the longitudinal direction of the through-opening (22) from the interior of the first functional element (30) outwards onto the surrounding insulating material (40).
3. The feed-through (10) of any one of the preceding claims, wherein the first functional element (30) is at least partially tubular, has a tube wall (34) enclosing an inner cavity (36), and
wherein the inner cavity (36) or a part of the inner cavity (36) forms a pressure conducting channel (32) of the first functional element (30).
4. The feed-through (10) of any one of the preceding claims, further comprising a second functional element (50) arranged within the first functional element (30), in particular within an internal cavity (36) of the first functional element (30) of tubular configuration;
preferably, an intermediate space (52) remains between the first functional element (30) and the second functional element (50) arranged therein, said intermediate space forming the pressure conduction channel (32).
5. The feedthrough (10) of any of the preceding claims, further comprising a connection material (60) at least partially surrounding the second functional element (50) and establishing a fluid-tight connection with the first functional element (30);
preferably, the connecting material (60) is arranged at an end of the first functional element (30), in particular at an end of the feedthrough on the side facing away from the pressure, and/or forms an end of the pressure conducting channel (32).
6. The feed-through (10) of any one of the preceding claims, wherein the first functional element (30) is of continuous tubular configuration and extends through the through opening (22) of the base body (20), and/or
Wherein the second functional element (50) extends continuously through the inner cavity (36) of the first functional element (30) of tubular configuration, and/or
Wherein an annular intermediate space (52) remains between the first functional element (30) and the second functional element (50) arranged therein, said intermediate space forming the pressure conduction channel (32) and/or
Wherein the second functional element (50) is annularly surrounded by a connecting material (60) and the connecting material (60) forms an end of the pressure conduction channel (32).
7. The feed-through (10) of any one of the preceding claims, wherein the first functional element (30) has a lower coefficient of thermal expansion than the second functional element (50), and/or
Wherein the second functional element (50) has a higher electrical conductivity than the first functional element (30), and/or
Wherein the connecting material (60) between the first functional element (30) and the second functional element (50) has a lower hardness than the insulating material (40) between the first functional element (30) and the base body (20).
8. Feed-through (10) according to any one of the preceding claims, wherein the base body (20) comprises a metal, in particular steel, stainless steel, FeCo alloy, titanium alloy, aluminium and aluminium alloys, kovar alloys or inconel alloys, such as inconel 690 and/or inconel 625.
9. The feed-through (10) of any one of the preceding claims, wherein the insulating material (40) comprises glass, glass-ceramic material and/or ceramic material, and
wherein the feedthrough (10) preferably comprises a press-fitted glass part, wherein a glass and/or glass-ceramic material and/or ceramic material connects the base body (20) and the first functional element (30) in a fluid-tight manner at least in certain regions, respectively.
10. The feed-through (10) of any one of the preceding claims, wherein the first functional element (30) comprises a metal, and/or wherein the first functional element comprises one of the materials mentioned in the subsequent claims for the second functional element.
11. Feed-through (10) according to one of the preceding claims, wherein the second functional element (50) comprises a metal, in particular copper, and/or
Wherein the connecting material (60) comprises a metal or an alloy, in particular a hard solder.
12. The feed-through (10) of any one of the preceding claims, wherein the feed-through (10) has a pressure resistance of at least 400 bar, preferably at least 500 bar, particularly preferably at least 600 bar.
13. Use of a feed-through (10) according to any of claims 1 to 12 in applications at a pressure of at least 400 bar, preferably at least 500 bar, particularly preferably at least 600 bar.
14. Use of a feedthrough (10) according to any of claims 1 to 12, in a device in deep sea, for example in an oil and/or gas drilling or exploration device; and/or in chemical or radiation environments, for example in the chemical industry or in energy plant and reactor technology, in particular in explosion-hazard areas; for use in an energy generation or storage device having a housing; or in the packaging of an energy generation device or an energy storage device or a reactor or a storage device for toxic and/or harmful substances, in particular as a feed-through in or through a reactor containment, in particular a chemical reactor or a nuclear reactor; or in space vehicles or space exploration vehicles; or in the housing of the sensor and/or of the actuator; devices for use in or on manned or unmanned water-borne vehicles, such as diving robots and submarines; and a gas tank, in particular CO, preferably also for a motor vehicle having a fuel cell2Reservoir or H2And (4) storage tank.
CN202110417970.1A 2020-04-21 2021-04-19 Feedthrough for high-voltage applications Pending CN113540849A (en)

Applications Claiming Priority (2)

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DE102020110826.5A DE102020110826A1 (en) 2020-04-21 2020-04-21 Bushing for high pressure applications
DE102020110826.5 2020-04-21

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CN113540849A true CN113540849A (en) 2021-10-22

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US (1) US20210324976A1 (en)
JP (1) JP2021174777A (en)
CN (1) CN113540849A (en)
DE (1) DE102020110826A1 (en)
FR (1) FR3109465B1 (en)
NO (1) NO20210475A1 (en)

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2903504A (en) 1956-02-24 1959-09-08 Tuck Edward Explosive feedthrough connector
DE1490333A1 (en) 1962-09-06 1969-01-16 Siemens Ag Gas-tight bushing for two 3-phase conductor systems, each with a neutral conductor through the wall of a metal boiler
US3945700A (en) * 1974-08-06 1976-03-23 Boston Insulated Wire & Cable Co. Connector with fluid-resistant sleeve assembly
US4154302A (en) * 1977-10-31 1979-05-15 Shafco Industries, Inc. Cable feed-through method and apparatus for well head constructions
FR2461343A1 (en) * 1979-07-11 1981-01-30 Ceraver INSULATING ELEMENT WITH FINS OR MONOBLOCS OF VULCANIZED FINS ARRANGED END-TO-END
US4426124A (en) * 1981-10-02 1984-01-17 Hughes Tool Company Feed through mandrel for submersible pump
US4797117A (en) 1982-12-23 1989-01-10 Shell Oil Company Marine electrical plug
US4583804A (en) * 1984-05-21 1986-04-22 Richard Thompson Electric feedthrough system
NL193126B (en) * 1987-04-28 1998-07-01 Nederland Ptt Method and device for arranging a cable in a cable guide tube.
US4792503A (en) 1988-01-25 1988-12-20 Honeywell Inc. Multi-functional hermetic seal for non-aqueous electrochemical cells
US4907982A (en) * 1988-11-30 1990-03-13 Kintec, Inc. Electrical connector for high pressure environments
US6093886A (en) * 1997-10-28 2000-07-25 University Of Rochester Vacuum-tight continuous cable feedthrough device
US20040103600A1 (en) * 2001-10-10 2004-06-03 Firma Roxtec Ingenieur Gmbh Modular bulkhead for sealing passage of cables and pipes in structures of all kinds
WO2004109248A1 (en) 2003-06-10 2004-12-16 Danfoss A/S A method for forming a pressure proof assembly between a component and house and such an assembly
DE102006054843B4 (en) 2006-10-10 2015-02-12 BC Tech Holding AG Electrical implementation, and method for producing such an implementation
DE102010037465A1 (en) * 2010-09-10 2012-03-15 Phoenix Contact Gmbh & Co. Kg Frame for cable entry systems and frame parts therefor
PL2431703T3 (en) * 2010-09-17 2019-09-30 Schott Ag Glass-to-fixing-material seal and method for manufacturing the same
MY182928A (en) * 2014-05-14 2021-02-05 Aker Solutions As Subsea universal xmas tree hang-off adapter
DE102016103485A1 (en) 2016-02-26 2017-08-31 Schott Ag Feedthroughs for high external pressure applications and methods of making same
DE102016223425A1 (en) * 2016-11-25 2018-05-30 Icotek Project Gmbh & Co. Kg Cable holders with partitions and a number of grommets for passing cables
DE102017000361A1 (en) * 2017-01-17 2018-07-19 Liebherr-Elektronik Gmbh High-pressure bushing for carrying a coaxial cable into a high pressure area
US11211779B2 (en) * 2017-10-17 2021-12-28 Framatome Cable lead-through assembly, electrical assembly, an electrical cabinet and associated method

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DE102020110826A1 (en) 2021-10-21
FR3109465B1 (en) 2023-11-10
NO20210475A1 (en) 2021-10-22
JP2021174777A (en) 2021-11-01
US20210324976A1 (en) 2021-10-21
FR3109465A1 (en) 2021-10-22

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Application publication date: 20211022